NIRT: Synthesis and Application of Magnetic Nano- and Nano-Composite Particles

项目摘要CTS-0304649磁性纳米颗粒/纳米复合材料（铁磁、亚铁磁和反铁磁材料）具有许多有前途的工业和生物医学应用，如催化、磁冷却、光学和记录设备、酶和其他生物材料的纯化以及水净化设备;然而，需要对其更广泛的适用性进行仔细研究的关键问题。第一是能够合成具有定制尺寸、组成和形态的特定应用所需的磁性纳米结构;第二是扩大生产大量这些纳米材料的工艺;第三是对尺寸依赖的磁性，纳米颗粒在高梯度磁场中的相互作用，并结合这些动态相互作用来预测不同介质中的输运特性。 该项目的总体目标是：（1）实验室规模合成具有定制尺寸、组成和形态的磁性颗粒和纳米复合材料;（2）开发高温环境下在线测量高浓度纳米颗粒的系统;（3）展示合成颗粒在数据存储、记录和生物医学应用（如栓塞）方面的新应用;（4）开发用于高浓度纳米颗粒测量的系统。（4）解决大批量纳米颗粒的规模化问题。该NIRT团队由圣路易斯华盛顿大学化学工程系、机械工程系和电气工程系的研究人员组成，他们在纳米颗粒/纳米复合材料合成工艺、纳米颗粒测量和表征以及工业和生物医学应用测试方面具有专业知识。

PROJECT ABSTRACTCTS-0304649Magnetic nanoparticles/nano-composites (ferromagnetic, ferrimagnetic and antiferromagnetic materials) have many promising industrial and biomedical applications such as catalysis, magnetocooling, optical and recording devices, purification of enzymes and other biological materials, and water purification devices; however, there are key issues that need to be carefully researched for their wider scale applicability. The first is the ability to synthesize desired magnetic nanostructures for specific applications with tailored sizes, compositions and morphologies; the second is to scale up processes for production of larger volumes of these nanomaterials; and the third is the understanding of the size dependent magnetic properties, the interaction of nanoparticles in high gradient magnetic fields, and incorporation of these dynamic interactions in predicting the transport characteristics in different media. The overall objectives of this project are: (1) the laboratory scale synthesis of magnetic particles and nano-composites with tailored size, composition and morphologies; (2) the development of systems for on-line measurement of high concentration nanoparticles in high temperature environments; (3) the demonstration of synthesized particles for novel applications, in data storage, recording, and biomedical applications such as in embolics; (4) addressing issues of scale up for processing large volumes of such nanoparticles.This NIRT team consists of researchers from the Departments of Chemical Engineering, Mechanical Engineering, and Electrical Engineering in Washington University in St. Louis, with expertise in nanoparticle/nano-composite synthesis processes, nanoparticle measurement and characterization, and testing for industrial and biomedical applications.